Area Code | Prefix | City/Switch Name (Click for city search) | State/Prov. Area Map | Telephone Company Web link | Telco Type | More Info |
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201 | 521 | JERSEYCITY | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
202 | 521 | WSHNGTNZN1 | District of Columbia | BROADWING COMMUNICATIONS, LLC - DC | CLEC | More |
203 | 521 | BRIDGEPORT | Connecticut | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | WIRELESS PROV | More |
204 | 521 | Portage La Prairie | Manitoba | TELUS Integrated Communications | CLEC | More |
205 | 521 | BIRMINGHAM | Alabama | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
206 | 521 | SEATTLE | Washington | QWEST CORPORATION | RBOC | More |
207 | 521 | HOULTON | Maine | NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - ME | RBOC | More |
208 | 521 | IDAHOFALLS | Idaho | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | WIRELESS PROV | More |
209 | 521 | MODESTO | California | PACIFIC BELL | RBOC | More |
210 | 521 | SANANTONIO | Texas | SOUTHWESTERN BELL | RBOC | More |
212 | 521 | NWYRCYZN01 | New York | VERIZON NEW YORK, INC. | RBOC | More |
213 | 521 | LSAN DA 10 | California | ELECTRIC LIGHTWAVE, LLC DBA INTEGRA TELECOM - CA | CLEC | More |
214 | 521 | DALLAS | Texas | SOUTHWESTERN BELL | RBOC | More |
215 | 521 | PHLDLPHZN1 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
216 | 521 | CLEVELAND | Ohio | AMERITECH OHIO | RBOC | More |
217 | 521 | DECATUR | Illinois | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WIRELESS PROV | More |
218 | 521 | CROOKSTON | Minnesota | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
224 | 521 | GLENVIEW | Illinois | AMERITECH ILLINOIS | RBOC | More |
226 | 521 | Arkona | Ontario | Execulink Telecom Inc. | IND. TELCO | More |
229 | 521 | VIENNA | Georgia | MCC TELEPHONY OF GEORGIA, LLC - GA | | More |
234 | 521 | CANTON | Ohio | T-MOBILE USA, INC. | WIRELESS PROV | More |
248 | 521 | SOUTHFIELD | Michigan | SPRINT SPECTRUM L.P. | PCS | More |
250 | 521 | AIL | British Columbia | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
252 | 521 | KINSTON | North Carolina | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | WIRELESS PROV | More |
256 | 521 | TALLADEGA | Alabama | TCG MIDSOUTH, INC. - AL | CLEC | More |
262 | 521 | WAUKESHA | Wisconsin | AMERITECH WISCONSIN | RBOC | More |
267 | 521 | PHLDLPHZN2 | Pennsylvania | OMNIPOINT COMMUNICATIONS ENTERPRISES, L.P. | WIRELESS PROV | More |
269 | 521 | BLOOMINGDL | Michigan | BLOOMINGDALE TELEPHONE CO. | IND. TELCO | More |
270 | 521 | ROBARDS | Kentucky | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
276 | 521 | CHILHOWIE | Virginia | LEVEL 3 COMMUNICATIONS, LLC - VA | CLEC | More |
281 | 521 | KEMAH | Texas | GTE-SW DBA VERIZON SW INC.-TX | IND. TELCO | More |
289 | 521 | Cooksville | Ontario | Rogers Communications Partnership (Cable) | | More |
301 | 521 | WSHNGTNZN6 | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
302 | 521 | WILMINGTON | Delaware | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
303 | 521 | DENVER | Colorado | SPRINT SPECTRUM L.P. | PCS | More |
304 | 521 | HNTNGTNZN1 | West Virginia | FRONTIER WEST VIRGINIA INC. | RBOC | More |
305 | 521 | NORTH DADE | Florida | INTERMEDIA COMMUNICATIONS INC. - FL | CLEC | More |
306 | 521 | YORKTON | Saskatchewan | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
309 | 521 | ANDOVER | Illinois | CAMBRIDGE TELEPHONE CO. | IND. TELCO | More |
310 | 521 | SAN PEDRO | California | PACIFIC BELL | RBOC | More |
312 | 521 | CHICGOZN01 | Illinois | AT&T LOCAL | CLEC | More |
313 | 521 | DETROITZN2 | Michigan | AMERITECH MICHIGAN | RBOC | More |
314 | 521 | LADUE | Missouri | SOUTHWESTERN BELL | RBOC | More |
315 | 521 | GENEVA | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
317 | 521 | FISHERS | Indiana | AMERITECH INDIANA | RBOC | More |
318 | 521 | NATCHITCHS | Louisiana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA | WIRELESS PROV | More |
319 | 521 | CEDAR RPDS | Iowa | IOWA WIRELESS SERVICES, LP | PCS | More |
323 | 521 | LSAN DA 08 | California | PACIFIC BELL | RBOC | More |
330 | 521 | MILLERSBG | Ohio | COMMUNICATION OPTIONS, INC.-OH | | More |
334 | 521 | AUBURN | Alabama | NUVOX COMMUNICATIONS | CLEC | More |
336 | 521 | ASHEBORO | North Carolina | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
337 | 521 | | Louisiana | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
347 | 521 | NWYRCYZN06 | New York | BROADVIEW NETWORKS, INC. - NY | CLEC | More |
352 | 521 | DADE CITY | Florida | EMBARQ FLORIDA, INC. DBA CENTURYLINK | IND. TELCO | More |
360 | 521 | VANCOUVER | Washington | T-MOBILE USA, INC. | WIRELESS PROV | More |
361 | 521 | TAFT | Texas | AWESOME PAGING, INC. | WIRELESS PROV | More |
401 | 521 | PROVIDENCE | Rhode Island | VERIZON NEW ENGLAND INC. | RBOC | More |
402 | 521 | ASHLAND | Nebraska | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE | | More |
403 | 521 | CALGARY | Alberta | TELUS | IND. TELCO | More |
404 | 521 | ATLANTA | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
405 | 521 | OKLA CITY | Oklahoma | SOUTHWESTERN BELL | RBOC | More |
406 | 521 | TOWNSEND | Montana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | WIRELESS PROV | More |
407 | 521 | ORLANDO | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
408 | 521 | SNJS WEST | California | PAC - WEST TELECOMM, INC. | CLEC | More |
410 | 521 | RANDALLSTN | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
412 | 521 | PTTSBGZON1 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
413 | 521 | BRIMFIELD | Massachusetts | GLOBAL NAPS, INC.-MA | CLEC | More |
415 | 521 | SNFC JUNPR | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
416 | 521 | TORONTO | Ontario | Bell Canada | IND. TELCO | More |
417 | 521 | SPRINGFLD | Missouri | BROOKS FIBER COMMUNICATIONS - MO | CLEC | More |
418 | 521 | QUEBEC | Quebec | Bell Canada | IND. TELCO | More |
419 | 521 | MANSFIELD | Ohio | UNITED TEL. CO. OF OHIO - CENTURYLINK | IND. TELCO | More |
423 | 521 | CHATTNOOGA | Tennessee | POWERTEL ATLANTA LICENSES, INC. | WIRELESS PROV | More |
424 | 521 | CMTN CMTN | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
440 | 521 | WILLOUGHBY | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
443 | 521 | CAMBRIDGE | Maryland | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | WIRELESS PROV | More |
450 | 521 | GRANBY | Quebec | Bell Mobility | WIRELESS PROV | More |
469 | 521 | CARROLLTON | Texas | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
478 | 521 | SANDERSVL | Georgia | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
479 | 521 | FAYETTEVL | Arkansas | SOUTHWESTERN BELL | RBOC | More |
480 | 521 | PHOENIX | Arizona | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | WIRELESS PROV | More |
484 | 521 | PHPHSBZN17 | Pennsylvania | ALLEGIANCE TELECOM OF PENNSYLVANIA, INC. | CLEC | More |
501 | 521 | FAYETTEVILLE | Arkansas | SOUTHWESTERN BELL - AR | RBOC | More |
503 | 521 | VANCOUVER | Oregon | T-MOBILE USA, INC. | WIRELESS PROV | More |
503 | 521 | BEAVERTON | Oregon | FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR | IND. TELCO | More |
504 | 521 | NEWORLEANS | Louisiana | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
505 | 521 | LAS CRUCES | New Mexico | QWEST CORPORATION | RBOC | More |
506 | 521 | Richibucto | New Brunswick | Aliant Telecom (Mobility) | | More |
507 | 521 | WASECA | Minnesota | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
508 | 521 | BROCKTON | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
509 | 521 | PASCO | Washington | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
510 | 521 | OKLD ALMD | California | PACIFIC BELL | RBOC | More |
512 | 521 | BASTROP | Texas | TEX-LINK COMMUNICATIONS, INC. - TX | CLEC | More |
513 | 521 | CINCINNATI | Ohio | CINCINNATI BELL, INC. | IND. TELCO | More |
514 | 521 | MONTREAL | Quebec | Bell Canada | IND. TELCO | More |
516 | 521 | NASSAUZN05 | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
517 | 521 | WEBBERVL | Michigan | FRONTIER MIDSTATES, INC. - MI | IND. TELCO | More |
518 | 521 | MALONE | New York | TELEPORT COMMUNICATIONS GROUP - NY | CAP | More |
519 | 521 | LONDON | Ontario | TELUS Mobility | CAP | More |
520 | 521 | SHOW LOW | Arizona | SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA | WIRELESS PROV | More |
530 | 521 | CHICO | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
540 | 521 | ROANOKE | Virginia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | WIRELESS PROV | More |
541 | 521 | EUGENE | Oregon | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | | More |
559 | 521 | DEL REY | California | PAC - WEST TELECOMM, INC. | CLEC | More |
561 | 521 | BOYNTONBCH | Florida | TW TELECOM OF FLORIDA L/P. - FL | CLEC | More |
562 | 521 | NORWALK | California | BANDWIDTH.COM CLEC, LLC - CA | | More |
570 | 521 | JERMYN | Pennsylvania | XO COMMUNICATIONS SERVICES INC - PA | CAP | More |
571 | 521 | HERNDON | Maryland | CAVALIER TELEPHONE, LLC | CLEC | More |
573 | 521 | NEW MADRID | Missouri | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
574 | 521 | SYRACUSE | Indiana | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
575 | 521 | LAS CRUCES | New Mexico | QWEST CORPORATION | RBOC | More |
580 | 521 | TEXHOMA | Oklahoma | PANHANDLE TELECOMMUNICATIONS SYSTEMS, INC. | | More |
585 | 521 | ROCHESTER | New York | FRONTIER TELEPHONE OF ROCHESTER INC | IND. TELCO | More |
587 | 521 | Edmonton | Alberta | Shaw Telecom Inc. | | More |
601 | 521 | JACKSON | Mississippi | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
602 | 521 | PHOENIX | Arizona | QWEST CORPORATION | RBOC | More |
603 | 521 | NASHUA | New Hampshire | AT&T LOCAL | CLEC | More |
604 | 521 | NEW WESTMINSTER | British Columbia | TELUS | IND. TELCO | More |
605 | 521 | SIOUX FLS | South Dakota | BROOKINGS MUNICIPAL UTILITIES | PCS | More |
606 | 521 | CORBIN | Kentucky | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
608 | 521 | READSTOWN | Wisconsin | UNITED STATES CELLULAR CORP. - WISCONSIN | WIRELESS PROV | More |
609 | 521 | FORT DIX | New Jersey | PAETEC COMMUNICATIONS, INC. - NJ | CLEC | More |
610 | 521 | PHPHSBZN14 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
612 | 521 | TWINCITIES | Minnesota | QWEST CORPORATION | RBOC | More |
613 | 521 | OTTAWA | Ontario | Bell Canada | IND. TELCO | More |
614 | 521 | COLUMBUS | Ohio | AMERICAN MESSAGING (AM), INC. | | More |
615 | 521 | NASHVILLE | Tennessee | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
616 | 521 | BLOOMINGDALE | Michigan | BLOOMINGDALE TELEPHONE CO. | IND. TELCO | More |
617 | 521 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
618 | 521 | CARBONDALE | Illinois | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WIRELESS PROV | More |
619 | 521 | SNDG SNDG | California | PACIFIC BELL | RBOC | More |
620 | 521 | GARDENCITY | Kansas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
623 | 521 | PHOENIX | Arizona | SPRINT SPECTRUM L.P. | PCS | More |
626 | 521 | COVINA | California | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | | More |
630 | 521 | BENSENVL | Illinois | AMERITECH ILLINOIS | RBOC | More |
631 | 521 | BRENTWOOD | New York | TW TELECOM OF NEW YORK L.P. - NY | CLEC | More |
641 | 521 | NEWTON | Iowa | UNITED STATES CELLULAR CORP. - IOWA | WIRELESS PROV | More |
646 | 521 | NYCZ 1 | New York | VERIZON NEW YORK, INC. | RBOC | More |
647 | 521 | Toronto | Ontario | Bell Mobility | WIRELESS PROV | More |
650 | 521 | MOUNTAIN VIEW | California | COMCAST PHONE OF CALIFORNIA, LLC - CA | CLEC | More |
662 | 521 | AMORY | Mississippi | CENTURYTEL ACQ LLC DBA CENTURYLINK ACQUISITION-MS | CLEC | More |
678 | 521 | ATLANTA | Georgia | SPRINT SPECTRUM L.P. | PCS | More |
682 | 521 | ARLINGTON | Texas | 1STEL, INC. - TX | | More |
701 | 521 | CAVALIER | North Dakota | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
702 | 521 | LAS VEGAS | Nevada | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
703 | 521 | WASZ 8 | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
704 | 521 | CHARLOTTE | North Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
705 | 521 | SUDBURY | Ontario | Bell Canada | IND. TELCO | More |
706 | 521 | ATLANTA | Georgia | LEVEL 3 COMMUNICATIONS, LLC - GA | CLEC | More |
707 | 521 | SANTA ROSA | California | PACIFIC BELL | RBOC | More |
708 | 521 | LA GRANGE | Illinois | AMERICAN MESSAGING (AM), INC. | | More |
709 | 521 | MOUNT CARMEL | Newfoundland | Aliant Telecom (NF) | IND. TELCO | More |
713 | 521 | HOUSTON JACKSON | Texas | SOUTHWESTERN BELL | RBOC | More |
714 | 521 | BUENA PARK | California | PACIFIC BELL | RBOC | More |
715 | 521 | ARGONNE | Wisconsin | METRO SOUTHWEST PCS, LLP | | More |
716 | 521 | ROCHESTER | New York | FRONTIER TELEPHONE OF ROCHESTER INC | IND. TELCO | More |
717 | 521 | HANOVER (YORK) | Pennsylvania | TELCOVE OF YORK - PA | CLEC | More |
718 | 521 | NYCZ 6 | New York | VERIZON NEW YORK, INC. | RBOC | More |
720 | 521 | DENVER SULLIVAN | Colorado | AMERICAN MESSAGING (AM), INC. | | More |
724 | 521 | PARIS | Pennsylvania | CORE COMMUNICATIONS, INC. - PA | | More |
727 | 521 | SAINT PETERSBURG | Florida | VERIZON FLORIDA INC. | IND. TELCO | More |
732 | 521 | JAMESBURG | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
734 | 521 | LIVONIA | Michigan | XO COMMUNICATIONS SERVICES, INC. - MI | CLEC | More |
740 | 521 | NELSONVILLE | Ohio | LONG DISTANCE OF MICHIGAN, INC. DBA LDMI - OH | | More |
757 | 521 | NFKZ 2 | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
760 | 521 | LA JOLLA | California | SPRINT SPECTRUM L.P. | PCS | More |
763 | 521 | MNPZ 1 | Minnesota | QWEST CORPORATION | RBOC | More |
765 | 521 | NEW CASTLE | Indiana | AMERITECH INDIANA | RBOC | More |
770 | 521 | ALPHARETTA | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
772 | 521 | STUART | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
773 | 521 | CHCZ 6 | Illinois | AMERITECH ILLINOIS | RBOC | More |
774 | 521 | WORCESTER | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
775 | 521 | EMPIRE | Nevada | CF COMMUNICATIONS, LLC DBA TELEKENEX - NV | | More |
778 | 521 | Elkford | British Columbia | Shaw Telecom Inc. | | More |
780 | 521 | Smoky Lake | Alberta | TELUS Mobility | WIRELESS PROV | More |
781 | 521 | WORCESTER | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
785 | 521 | OTTAWA | Kansas | AERIAL COMMUNICATIONS | WIRELESS PROV | More |
786 | 521 | MIAMI | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
787 | 521 | SANTURCE | Puerto Rico | CENTENNIAL PUERTO RICO OPERATIONS CORP. - PR | CLEC | More |
801 | 521 | SALT LAKE CITY | Utah | QWEST CORPORATION | RBOC | More |
802 | 521 | MORRISVL | Vermont | PAETEC COMMUNICATIONS INC. - VT | | More |
803 | 521 | EDGEFIELD | Georgia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | WIRELESS PROV | More |
804 | 521 | RICHMOND | Virginia | US LEC OF VIRGINIA, LLC | CLEC | More |
805 | 521 | PIRU | California | PACIFIC BELL | RBOC | More |
806 | 521 | BORGER | Texas | NTS COMMUNICATIONS, INC. | CLEC | More |
808 | 521 | HONOLULU | Hawaii | HAWAIIAN TELCOM, INC. - HI | IND. TELCO | More |
810 | 521 | DRYDEN | Michigan | AMERICAN MESSAGING (AM), INC. | | More |
812 | 521 | SEYMOUR | Indiana | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
814 | 521 | PITTSBURGH | Pennsylvania | SPRINT SPECTRUM L.P. | PCS | More |
815 | 521 | MINOOKA | Illinois | AMERITECH ILLINOIS | RBOC | More |
816 | 521 | KANSAS CITY INDEPEN | Missouri | SOUTHWESTERN BELL | RBOC | More |
817 | 521 | ARLINGTON | Texas | SPRINT SPECTRUM L.P. | PCS | More |
818 | 521 | SHERMAN OAKS | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
819 | 521 | La Tuque | Quebec | TELUS Mobility | PCS | More |
828 | 521 | ASHEVILLE | North Carolina | KMC TELECOM III, INC. - NC | CLEC | More |
830 | 521 | SAN ANTONIO | Texas | TEX-LINK COMMUNICATIONS, INC. - TX | CLEC | More |
831 | 521 | MONTEREY | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
832 | 521 | HOUSTON | Texas | BROADWING COMMUNICATIONS, LLC - TX | CLEC | More |
843 | 521 | BEAUFORT | South Carolina | UNITED TELEPHONE CO CAROLINAS DBA CENTURYLINK | IND. TELCO | More |
845 | 521 | NEW CITY | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
847 | 521 | CHICAGO | Illinois | TELEPORT COMMUNICATIONS GROUP - CHICAGO | CAP | More |
850 | 521 | TALLAHASSEE | Florida | EMBARQ FLORIDA INC. (CENTRAL) DBA CENTURYLINK | IND. TELCO | More |
856 | 521 | LAUREL SPRINGS | New Jersey | MCI WORLDCOM COMMUNICATIONS, INC., NJ | CLEC | More |
858 | 521 | RANCHO BERNARDO | California | PACIFIC BELL | RBOC | More |
860 | 521 | WEST HARTFORD | Connecticut | SOUTHERN NEW ENGLAND TELEPHONE CO. | IND. TELCO | More |
863 | 521 | WINTER HAVEN | Florida | AERIAL COMMUNICATIONS | WIRELESS PROV | More |
864 | 521 | ANDERSON | South Carolina | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
865 | 521 | KNOXVILLE | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
870 | 521 | HOPE | Arkansas | SOUTHERN TELCOM NETWORK, INC. - AR | | More |
901 | 521 | MEMPHIS | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
902 | 521 | BRIDGEWATER | Nova Scotia | Aliant Telecom (Mobility) | | More |
903 | 521 | TYLER | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
904 | 521 | JACKSONVILLE | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
905 | 521 | HAMILTON | Ontario | Bell Canada | IND. TELCO | More |
907 | 521 | EMERGENCY RESTORAL | Alaska | CELLCO PARTNERSHIP DBA VERIZON WIRELESS | WIRELESS PROV | More |
908 | 521 | PHILLIPSBURG | New Jersey | BROADWING COMMUNICATIONS, LLC - NJ | CLEC | More |
909 | 521 | HEMET: HEMET DA | California | BANDWIDTH.COM CLEC, LLC - CA | | More |
910 | 521 | PEMBROKE | North Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
912 | 521 | SANDERSVILLE-TENNIL | Georgia | BELLSOUTH TELECOMM INC - GA | RBOC | More |
914 | 521 | WESTCHESTER ZONE 8 | New York | GENERAL COMMUNICATIONS & ELECTRONICS CORP. | WIRELESS PROV | More |
915 | 521 | EL PASO MAIN | Texas | SOUTHWESTERN BELL | RBOC | More |
916 | 521 | ROSEVILLE: MAIN DA | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
917 | 521 | NYCZ 3 | New York | VERIZON NEW YORK, INC. | RBOC | More |
918 | 521 | TULSA | Oklahoma | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
919 | 521 | RALEIGH | North Carolina | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
920 | 521 | GREEN BAY | Wisconsin | GLOBAL CROSSING TELEMANAGEMENT, INC.-WI | CLEC | More |
925 | 521 | CONCORD | California | PACIFIC BELL | RBOC | More |
928 | 521 | SHOW LOW | Arizona | SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA | WIRELESS PROV | More |
936 | 521 | CONROE | Texas | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | IND. TELCO | More |
937 | 521 | SPRINGFLD | Ohio | CINCINNATI BELL EXTENDED TERRITORIES LLC - OH | | More |
940 | 521 | GRAHAM | Texas | SOUTHWESTERN BELL | RBOC | More |
949 | 521 | SADDLEBACK VALLEY | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
954 | 521 | FORT LAUDERDALE | Florida | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
956 | 521 | BROWNSVL | Texas | STPCS JOINT VENTURE, LLC | PCS | More |
970 | 521 | STERLING | Colorado | QWEST CORPORATION | RBOC | More |
972 | 521 | DALLAS 1 | Texas | TIME WARNER COMMUNICATIONS AXS OF AUSTIN, TX | CAP | More |
973 | 521 | NEWARK | New Jersey | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | | More |
978 | 521 | HAVERHILL | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
980 | 521 | CONCORD | North Carolina | SPRINT SPECTRUM L.P. | PCS | More |
989 | 521 | ROGERSCITY | Michigan | TELNET WORLDWIDE, INC. | CLEC | More |
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